Close Go back Collapse all sections
Process Data set: [CicloData] (3)|tap water production, underground water with chemical treatment | tap water | Cutoff, U (en) en

Key Data Set Information
Location CL
Reference year 2012
Name
[CicloData] (3)|tap water production, underground water with chemical treatment | tap water | Cutoff, U
Classification
Class name : Hierarchy level
  • ILCD: #ECOED / #CICLODATA / Agua / Agua potable
General comment on data set ecoQuery: https://ecoquery.ecoinvent.org/3.10/cutoff/dataset/11023/documentation This dataset represents production of 1 kg of tap water under pressure at facility gate, ready for distribution in network. It represents average operation of tap water from underground water with chemical treatments. Water is pumped from aquifer, chemically enhanced (e.g. corosion inhibitor, ph, chloration, etc.) and pressurized for distribution. Inventory was constructed from reported energy inputs and wastes from a single plant located in Québec assumed to represent 8% of total production of tap water from this technology. From the intake pumping of raw surface water into the water treatment plant. This dataset ends with the production of tap water, at facility gate, under pressure. It includes energy for intake pumping, lighting and heating of the building as well as the energy of the pump pressurizing water to the beginning of the network. Infrastructure for the facility is estimated. It excludes energy for pumping stations and water losses within the network which is included in the tap water market. Emissions to the environment occurring during the treatment and during the distribution were not considered as they are assumed negligible. Main substance in water that would be released in the environment are assumed to be considered in wastewater processes.
Copyright Yes
Quantitative reference
Reference flow(s)
Time representativeness
Data set valid until 2023
Time representativeness description Time of publication.
Technological representativeness
LCI method and allocation
Type of data set Unit process, black box
LCI Method Principle Other
Data sources, treatment and representativeness
Data treatment and extrapolations principles From a single municipal groundwater treatment plant for tap water production to all tap water production from underground water with chemical treatment in the region. This technology is assumed to represents 9.2% of all tap water volume produced in Quebec.
Sampling procedure Based on data collected from selected plants chosen either for their technological specificities or their production representativeness. A survey campaign was conducted in summer 2013 with 2012 as a reference year. All technologies combined, 16 distinct tap water production plants participated.
Completeness
Completeness of product model No statement
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-10-18T12:53:31.575000-03:00
Data set format(s)
Data entry by
Publication and ownership
UUID 60d5c14b-5edf-4b4e-9112-6534d741b7bf
Date of last revision 2024-10-16T23:34:34.553000-03:00
Data set version 00.00.007
Copyright Yes

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
F:Construction / 43:Specialized construction activities / 431:Demolition and site preparation / 4312:Site preparation GLO 5.298048E-5 MJ5.298048E-5 MJ
General comment Calculated value.
Product flow
D:Electricity, gas, steam and air conditioning supply / 35:Electricity, gas, steam and air conditioning supply / 351:Electric power generation, transmission and distribution / 3510:Electric power generation, transmission and distribution CL 2.087496E-4 MJ2.087496E-4 MJ
General comment Measured value. Average electricity consumption for entire process including pumping for water intake and pumping for distribution at the plant gate. All plants (2) reported electricity use. EcoSpold01Location=UCTE
Product flow
F:Construction / 42:Civil engineering / 422:Construction of utility projects / 4220:Construction of utility projects GLO 2.0568E-11 Item(s)2.0568E-11 Item(s)
General comment Approximated process. Used to represent facility pumping both intake and at facility gate. Value taken directly from ecoinvent V2.2 tap water, at user module.
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2011:Manufacture of basic chemicals RoW 1.2E-6 kg1.2E-6 kg
General comment Measured value. Average use of hypochlorite (dry basis) for disinfection in surveyed underground water with chemical treatment plants. Reported concentration of solution is 12% (w/w), input of exchange "water" was added accordingly. Note the 1 plants reported using this substance.
Product flow
E:Water supply; sewerage, waste management and remediation activities / 36:Water collection, treatment and supply / 360:Water collection, treatment and supply / 3600:Water collection, treatment and supply CL 2.41269E-5 kg2.41269E-5 kg
General comment Calculated value. Water content of hypochlorite solution, sodium hydroxide, sodium silicate solution, pyrophosphate solution and zinc polyphosphate solution.
Elementary flow
Resources / Resources from water / Renewable material resources from water CL 0.001 m30.001 m3
General comment Measured value. Data provider reported that no loss occurs thoughout water treatment.
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2012:Manufacture of fertilizers and nitrogen compounds GLO 8.65E-6 kg8.65E-6 kg
General comment Measured value. Value reprensents average for use of fluosilicic acid in a typical conventional treatment plant in Brazil - according to Guanais, A.L.R.; Cohim, E.B.; Medeiros, D.L report " Avaliação energética de um sistema integrado de abastecimento de água": [ retrieved from ; http://www.scielo.br/pdf/esa/2017nahead/1809-4457-esa-s1413-41522017146180.pdf pg. 1191 ]
Product flow C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2011:Manufacture of basic chemicals RoW 5.9524E-6 kg5.9524E-6 kg
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2011:Manufacture of basic chemicals RoW 7.55E-5 kg7.55E-5 kg
General comment Measured value. Value reprensents average for use of aluminium sulfate in a typical conventional treatment plant in Brazil - according to Guanais, A.L.R.; Cohim, E.B.; Medeiros, D.L report " Avaliação energética de um sistema integrado de abastecimento de água": [ retrieved from ; http://www.scielo.br/pdf/esa/2017nahead/1809-4457-esa-s1413-41522017146180.pdf pg. 1191 ]
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2011:Manufacture of basic chemicals GLO 9.73E-7 kg9.73E-7 kg
General comment Measured value. Value represents average for use of polyacrylamide in the production of flocculants for the clarification of water based on Colombian LCA reports/written communication [(Orlando, Rodriguez, Villamizar-gallardo, & García, 2016), (Varón Hoyos, 2015) , (EPM, 2016)]. Note that 5 of the 6 conventional plants reported using this substance. Plants not reporting this consumable were attributed an input of 0 during the calculation of the weighted average. This avoided double functional equivalent chemical inputs.
Product flow
B:Mining and quarrying / 08:Other mining and quarrying / 081:Quarrying of stone, sand and clay / 0810:Quarrying of stone, sand and clay GLO 1.49834E-6 kg1.49834E-6 kg
General comment Calculated value taken from the "tap water production, conventional treatment, GLO" dataset (accessed 20170920) as it was considered adequate also for this dataset. Amount of sand to compensate losses through sand filter washing. Extrapolated to all plant from one reported value. Also includes average use of micro-sand for adjustment for this technology. Note that only 1 of the 9 conventional plants reported using micro-sand. Plants not reporting this consumable were attributed an input value of 0 during the calculation of the weighted average.

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow E:Water supply; sewerage, waste management and remediation activities / 36:Water collection, treatment and supply / 360:Water collection, treatment and supply / 3600:Water collection, treatment and supply CL 1.0 kg1.0 kg